Research output: Contribution to journal › Article › peer-review
Structural state of diamond-like amorphous carbon films, obtained by laser evaporation of carbon target. / Plotnikov, V. A.; Dem'yanov, B. F.; Yeliseeyev, A. P. et al.
In: Diamond and Related Materials, Vol. 91, 01.01.2019, p. 225-229.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Structural state of diamond-like amorphous carbon films, obtained by laser evaporation of carbon target
AU - Plotnikov, V. A.
AU - Dem'yanov, B. F.
AU - Yeliseeyev, A. P.
AU - Makarov, S. V.
AU - Zyryanova, A. I.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - A homogeneous diamond-like film was obtained on an area of 75 × 25 mm2. Study of the film structure, using transmission electron microscopy and Raman spectroscopy, showed a mixture of carbon atoms with sp2- and sp3-bonds. Structure of carbon film is determined by the presence of randomly oriented carbon clusters bound by diamond sp3-bonds (tetrahedral amorphous carbon, ta-C). Electron diffraction patterns demonstrate strongly distorted interfacial distances. Raman spectra show that there are carbon atoms with graphite sp2-bonds in the film, but a signal of graphite crystal lattice is absent in electron diffraction: This implies that hexagonal units are not shaped into a graphite crystal lattice. Broad D-band in Raman spectra shows strongly distorted carbon bonds in graphite. If diamond phase dominates, the space between diamond clusters is filled with carbon atoms with sp2-bonds (turbostratic structure). Thus, diamond areas are bound into a single discontinuous aggregate of carbon diamond-like film.
AB - A homogeneous diamond-like film was obtained on an area of 75 × 25 mm2. Study of the film structure, using transmission electron microscopy and Raman spectroscopy, showed a mixture of carbon atoms with sp2- and sp3-bonds. Structure of carbon film is determined by the presence of randomly oriented carbon clusters bound by diamond sp3-bonds (tetrahedral amorphous carbon, ta-C). Electron diffraction patterns demonstrate strongly distorted interfacial distances. Raman spectra show that there are carbon atoms with graphite sp2-bonds in the film, but a signal of graphite crystal lattice is absent in electron diffraction: This implies that hexagonal units are not shaped into a graphite crystal lattice. Broad D-band in Raman spectra shows strongly distorted carbon bonds in graphite. If diamond phase dominates, the space between diamond clusters is filled with carbon atoms with sp2-bonds (turbostratic structure). Thus, diamond areas are bound into a single discontinuous aggregate of carbon diamond-like film.
KW - Amorphous carbon
KW - Microstructure
KW - Nanotechnology
KW - Pulsed laser deposition
KW - Vibrational properties characterization
KW - SUBSTRATE-TEMPERATURE
KW - DEPOSITION
UR - http://www.scopus.com/inward/record.url?scp=85057861066&partnerID=8YFLogxK
U2 - 10.1016/j.diamond.2018.11.022
DO - 10.1016/j.diamond.2018.11.022
M3 - Article
AN - SCOPUS:85057861066
VL - 91
SP - 225
EP - 229
JO - Diamond and Related Materials
JF - Diamond and Related Materials
SN - 0925-9635
ER -
ID: 18070990